The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2012
Filed:
Jul. 18, 2008
Teiichirou Chiba, Hiratsuka, JP;
Yukihiko Sugimoto, Hiratsuka, JP;
Teiichirou Chiba, Hiratsuka, JP;
Yukihiko Sugimoto, Hiratsuka, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
An output shaft and an input shaft are connected with a connection member interposed therebetween, and a motor rotor is provided outside the connection member. Part of oil flowing down from an oil supply openingof a motor housing MH is supplied to a first spline joint section of the input shaft and the connection member through a space and an opening of a bearing flange fixed to the motor housing MH. The oil lubricating the first spline joint section moves along an inner circumferential surface of a hole by a centrifugal force generated by rotation of the connection member, the oil moves in a radial direction along an end face on one end section side of the connection member 40 in one end section of the connection member, and the oil is supplied to a second spline joint section of the output shaft and the connection member.